* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

nav {
  margin-right: 60px;
  margin-top: 27px;
}

ul a {
  text-decoration: none;
  list-style: none;
  font-size: 20px;
  color: #000000;
  line-height: 29.38px;
}

.side-nav {
  height: 70%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  right: 0;
  background-color: #21243d;
  opacity: 0.9;
  overflow-x: hidden;
  padding-top: 4rem;
  transition: 0.5s;
}

.side-nav a:hover {
  background-color: #21243d;
}

.blog {
  color: #ff6464;
}

.article h4 span {
  color: #8695a4;
}

.article p {
  width: 100%;
  color: #21243d;
  font-size: 16px;
  line-height: 23.5px;
}

footer {
  padding: 1rem;
}

.footer {
  display: flex;
  justify-content: center;
  margin-bottom: 1.3rem;
  padding-left: 2rem;
}

footer a {
  margin-right: 2rem;
}

footer p {
  display: flex;
  justify-content: center;
  font-size: 14px;
  line-height: 20.56px;
  color: #21243d;
  padding-bottom: 3rem;
}

@media screen and (min-width: 320px) {
  nav ul {
    display: none;
  }

  .open-slide {
    position: absolute;
    right: 7px;
  }

  .content {
    padding: 0 1rem 5.2rem 1rem;
    margin-top: 24px;
  }

  article {
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0 29px 0;
    flex-wrap: wrap;
    width: 100%;
  }

  h1 {
    color: #21243d;
    font-size: 44px;
    font-weight: 700;
    line-height: 60px;
    margin-bottom: 25px;
  }

  .article h3 {
    font-size: 25px;
    color: #21243d;
    line-height: 40.08px;
    margin-bottom: 17px;
    width: 100%;
    font-weight: 500;
  }

  .article h4 {
    font-size: 15px;
    color: #21243d;
    font-weight: 400;
    line-height: 29.38px;
    margin-bottom: 15px;
    width: 100%;
  }

  .side-nav a {
    padding: 1rem;
    text-decoration: none;
    font-size: 1rem;
    color: #fff;
    display: block;
    transition: 0.3s;
  }

  .side-nav .btn-close {
    position: absolute;
    top: 0;
    right: 2px;
    font-size: 2.5rem;
    font-weight: 700;
  }
}

@media screen and (min-width: 768px) {
  nav ul {
    display: flex;
    justify-content: right;
    gap: 3rem;
  }

  .open-slide {
    display: none;
  }

  .content {
    margin-top: 8.75rem;
    padding: 0 0 6.5rem 5rem;
  }

  article {
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0 29px 30px;
    flex-wrap: wrap;
    width: 85%;
  }

  h1 {
    color: #21243d;
    font-size: 44px;
    font-weight: 700;
    line-height: 60px;
    margin-bottom: 55px;
    padding: 0 0 0 30px;
  }

  .article h3 {
    font-size: 30px;
    color: #21243d;
    line-height: 40.08px;
    margin-bottom: 17px;
    width: 100%;
    font-weight: 500;
  }

  .article h4 {
    font-size: 20px;
    color: #21243d;
    font-weight: 400;
    line-height: 29.38px;
    margin-bottom: 15px;
    width: 100%;
  }
}

@media screen and (min-width: 1200px) {
  .content {
    padding: 0 0 6.5rem 14.69rem;
  }

  article {
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0 29px 30px;
    flex-wrap: wrap;
    width: 50%;
  }

  h1 {
    color: #21243d;
    font-size: 44px;
    font-weight: 700;
    line-height: 60px;
    margin-bottom: 55px;
    padding: 0 0 0 30px;
  }
}